Isolation and Determination of Polymeric Polyphenols in Wines Using Sephadex LH-20

摘要: Chromatography on Sephadex LH-20 separated non-polymeric and polymeric phenols in wines. Concentrations of white wines made with five-day pomace contact were directly related to phenol concentrations skin tissues. Although solid tissues red grape varieties found be similar, the same time as contain much lower phenols. This strongly suggests that anthocyanins greatly enhance transfer or retention Mature pigment polymers aged not retained by LH-20, showing these have different size hydrogen-bonding properties than condensed tannin young By combining results obtained dialysis procedure, an estimate can "residual tannin" "mature polymer"